Trolley-replacer.



No. 877,379. PATNNTND JAN. 21, 1908. G. Q. SEAMAN.

TROLLEY REPLAGEB..

APPLICATION FILED MAR. 2a, 1907.

I SYM/vr@ A TTOHNEYS umm rm mc.. Lema., Mmmm. D. c.

' lWhile the invention concerns itself. es-' GEORG IQ. oF NEW`YoRK, N, Y.,

'raoLL-Er-REPLAGER.

Specification of Letters Patent.

Application led March 28; 190.7. Serial No. 364.011.

To all 'whom it may concemfj Be it known that I, Geenen Q. SEAMAN, a citizen of the United States, and a, resident I ofthe cityof New York, borou h of' Brook- .1 inthe countyof Kings and" tate -of New gdr, have-inventeda new and Improved Trolley-Replacer, of which the following is a full, clear,"and`eXac t description. a

This invention relates to trolley replacers suchas used in connection with theltrolley poles of electricv cars for replacing the trolley upon the trolleyNvire when it becomes acci-4 dentally displaced.

peciallywiththe trolley replacer, the construction :is suchaswilloperate automatv-icallyto depress the trolley polewhen it becornes disp ac ed; in this way preventing in- "jury to the guy wires or supports.

l' The'object ofthe inventlon is to produce -'a simple devicel which'will operate to depress the pole a tomatically as su gested, to enable the poteto be quickly'replaced.' l The inventionconsists inthe construction and'f combination of parts to be' more fully 'described hereinafter. and particularly set -fo'rth in the claims.

" Reference is-to be had to the accompanydrawings forming apart of this speciiioation, in which similar characters of refer-l ence, indicatecorresponding parts in all the figures.

Figure 1'is a vertical longitudinal section through the device, aportion of the pole being broken away; this viewsliows the trolley` "Re in substantially'the ositiony which it;

. halwhenit is intact an running on the\ l. trolley wire; Fig. 2- is avertical central'section similar to Fig. 1, but representing the trolley ole in the ac-t of being' replaced on the trol ey; and Fig. Sis 'a plan of the parts I .I 1, the end ofthe being broken away.-

.showing them, in the relation indicated in 'pole and other 'parts Refering more particularly to the parts, representsthe lbase which is mounted, as

\ ,'usual, u' on a swivel pin 2 on the roof of the -car. T is base is formed with a rearwardly extending frame 3 presen-tingtwo arallel side bars 4 and a cross' -bar 5. Over t e base 1,' which is of substantiall circular form,as indicated 'in Fig. 3, the ame 3 is formed with bearings 6 oppositely disposed, and

through these bearings there passesa transfverse pin 7. Rotatably mounted on the pin 7 betweenthe bearings 6, I provide a cradle 8, Awhich consists of. an elongated substan- Patented .iaa 21, 1968..;

tially rectangular frame presenting parallel side bars Q connected by acrosshead 10; The forward portion ofthe cradle ,is

vided with a cross barlladjacent to W ch there is provided a second cross bar or stop bar 12. vBetween the side bars9 of the cra#A l i l dle, a latch lfhangs downwardly from a suitable pivot pin .14, 'and this latch 1s provided with a tooth 15. which projects to- Wards the cross bar 5 of theframe 3. A simi- 'lar tooth 16 is 'provided on the outer side of the cross bar', which is ada ted to be er1- gaged by the latch.' so as to old the cradle normally in a depressed position, as shown in Fig. 1 Thecradle,however, is pressed toward a'n elevated osition by s rings 17 lgars l18, said aw bars eingassed through guide openings in the cross arV 5, and having their forward lextremities attached pivotally at 19 to the lforward extremities of the/ )bars @of the' cradle.l

u On the 20 areprovided, aga'nst Whichthe forward ends of the springs t ust, andf these washers are formedwith convex forward faces 21 vwhich enable them to' adapt themselves to changing positions ofthe draw bars.' The fouter extremities of the springsthrust against rear side ofthe cross b ar 5, washers 'washers 2 .attac-hed respectively to the draw bars by #sans of suitablenuts 23. Between the sidebars 9 of the craiile the trolley `ole Y 24 is loosel. mounted on the lower endo the trolley fork 2 5, and "between t there'is loosely mounted on the pin 7, a trip pin 7. he pole isformed with-:a

e arms of this fork plate 26. This trip plate -is provided near itsupper side, somewhat to 'the rear, with a shoulder 27 5 andon'its lower ,side it is formed with a downwardly projectin arm 28. To

this arm ahelical spring is attached, which extends forwardly in the frame 3, and is attached to an I-bolt 30 set in the cross bar 5 of the frame. Between the arms of the yforli 25 a pawl 31 is pivoted, and this pawl is adapted to enga e the shoulder 27 in the manner shown in ig. 1, sothat the trip plate will operate to hold the trolley pole normally in an elevated position. In this'connection vit should be understood that the spring 29 The latch cord passes toward the rear of the car alongthe roof, being ided by a suitable guidep'ulley 35 attache to the roof of the car. The latch 13 is formed on its'outer or rear face with an enlargement or counter- `weight 36 which facilitates the operation of the. latch in .a manner which will be described more fully hereinafter.v

The mode of operation of the device will 'now be described: In Fig. 1 the parts are represented intheI normal position; that is, with the trolley pole in. the position which it assumes when the trolley wheel is running on the trolley wire. Suppose, now, that the v trolley ole should become displaced from vthe trol ey Wire; the force of the spring 29 will immediately rotate the trip plate 26. In

this way the trolley pole will swing upwardly,

and the movement will continue until the rear extremity of the dog 32 strikes the pawl 31. In this way the pawl 31 will be thrown out of engagement With the shoulder 27. When this occurs, the trolley pole will no longer be supported, and it will fall into the position in which it is shown in the dotted ines iny Fig. 2, resting upon the head of the cradle. It will be seen that 'this automatic depressing of the trolley pole is substantiallyv instantaneous,so that the pole'. cannot project an appreciable time above the trolley wire. In this `Way I prevent any 'possibility of theA trolley pole striking or injuring the guy wires supporting the trolley wire. When 1t is desired to replace the trolleypole on theA trolley Wire, this is accomplished by releasing the latch 13 by pulling the cord 34, which cord extends to the rearplatform of the car, together with' the cord 33. As soon as the latch 13-is released, the force ofthe springs 17 operating on the cradle, tends to raise' the cradle and the pole. 'lhis'lupward tende'ncrv of the cradle, however, is resisted bythe cord 33, which is heldin the hand and paid out" slowly untilv the. ole hasfmojved upwardly sutcently to ena le the Ipawl to engage the shoulder,.as indicated in ig; As'soon as this occurs, thef-trolleypole'is vpulled downj Wardly by 'the-"cord 33 ,1 carrying with vit the i This downward" movement contin-v ues until 'the cradle -comes -into substanrfallyl" thefposition-in which' it isA shownin Figl 1.1;' The .cord 34. is allowed to; run slack so? that cradle.

the latch' 13 engages'automatically with the tooth 16 ofthe frameg. 'Thejcradle will 'then become lockesiiltitsrdepressed; positiefs. and;

the cord 33 is then paid out to allow the trolley pole to move upwardly; and the cord is then used in the usual manner to replace the trolley wheel upon the Wire.

now appear clearly that the device operates automatically to depress the pole when 1t becomes displaced, and may be operated 1n pole -on the wire and theother parts in their normal position.

Having thus described my invention, I

Patent:

1. In a device of the class described, in combination, a base, a trolley pole pivotally mounted thereupon, means tending to force said trolley pole-toward the trolley wire, automatic means for depressing said pole when displaced from the Wire, and a cradle adapted to receive said trolley pole whendepr'essed, and ailiording means for raising the same to its normal position.

2. In a device of the *class described, in combination., a frame,a trolleypole pivotally mounted thereupon', a cradle pivotally mounted on said frame, means vltending to raise said cradle, means for latching said cradle normally in a. depressed position,

trolley pole when displaced from the trolley wirev w ereby it -may 'descend upon said cradle, and means for releasing said cradle to enable the same to raise said pele.

combination, a base, a trolleyl 'olepivot-l ally mounted, thereupon,`a cra e pivotally mounted on said base and adapted to receive said trolley pole in a depressed position, a trip plate' mounted on saidbase, a member connecting said pole and said trip plate and vaffording means for supporting said pole upon said trip' plate, means engaging said said trolley. pole in an elevated position, a

adapted to vdisengage the samel when 'said trolley-pole becomes displaced fromthe trolley wire, means tending'to raise said cradle, and/means for latching said cradle in a depressed position.

combination, a base, a trolley ole pivotall'y mounted thereupon, a trip plate pivotally mounted on said base and 'having a shoulder, a pawl carried by said'trolley pole and engaging said shoulder to enable said trip plate to' support 'said trolley pole, a spring attahed to said trip plate and'atlordin means vj'or.normally' holding said trolley poI elevatedposition, a cradle pivotally mounted L on said base and having a dog adapted to engage said. awl when said trolley pole` be= claim as new and desire to secure by Lettersmeans for automatically ,depressing said trip plate and affording means for vholdingv dog lying adjacent to said'frst member ,and

4. In a device. of' the class described, ,in

L'LQQHQS detac eden-oni 'the trolleywire,

From the arrangement described, it will I a very simple manner to replace the trolley v 3. In a device of the-classdescribed,.in

e in an "cradle toward an elevatedposition, a 4latch amavis a tf1-edle'being adapted toreceive said trolley In testimony, whereof I haie signed-'my poleas it becomes depressed when said paWl. name 'to this specification presenee -of V'10- 1s' re1ea.sed, springs tending tovmove said.- vtwo subsciibing Witnesses.

Vifforffnoimally holding said cradle in a.; 1 depressed position, a cord eonneting withs'aid Witnesses: I trolleyv pole, and means foreoperating said EDWARD J. SHABMAN 'latlL 1 Tnoms- 

